Carbene analogs in chemistry are carbenes with the carbon atom replaced by another chemical element. Just as regular carbenes they appear in chemical...

In organic chemistry, a carbene is a molecule containing a neutral carbon atom with a valence of two and two unshared valence electrons. The general formula...

Carbene radicals are a special class of organometallic carbenes. The carbene radical can be formed by one-electron reduction of Fischer-type carbenes...

Silylene is a chemical compound with the formula SiR2. It is the silicon analog of carbene. Silylene rapidly when condensed. Silylenes are formal derivatives...

readily dissociates in solution to form (Me3Si)2CHSn: (stannanediyl, a carbene analog). The bonding comprises two weak donor acceptor bonds, the lone pair...

bond is homolytically cleaved in a system R1 R2 M = MR3 R4, the two carbene analog fragments resulting therefrom can subsequently be present in both a...

diazyne) The extra bond is added to a less-common parent hydride, a carbene analog, typically named -ene or -ylene, which is neutral with 2 fewer bonds...

exposing the sample to UV light. This led to formation of a highly reactive carbene radical that can react with amino acid residues in the receptor and become...

0157 u) may refer to: Cyclopropenylidene, an aromatic carbene Cyclopropyne, the cyclic analog of an alkyne This set index page lists chemical structure...

precursors for carbenes by loss of a molecule of dinitrogen. For example, irradiation of diazirines with ultraviolet light leads to carbene insertion into...

compounds with the general formula :GeR2. They are heavier carbene analogs. However, unlike carbenes, whose ground state can be either singlet or triplet depending...

formerly phosphinediyls) are low-valent phosphorus compounds analogous to carbenes and nitrenes, having the general structure RP. The parent phosphinidine...

difluorostannylene and hept-1-yne. The first direct observation of a carbene analog π-complex with alkyne". Russian Chemical Bulletin. 43 (1): 47–49. doi:10...

cycloadditions for preparing seven-membered rings. Alkylidenes and other carbene analogs participate readily in cycloaddition reactions. Cycloaddition reactions...

carbene) systems based on imidazole rings, these carbenes are structured from triazole rings. 1,2,4-triazol-5-ylidene can be thought of as an analog member...

(R2Sn:) are a class of organotin(II) compounds that are analogues of carbene. Unlike carbene, which usually has a triplet ground state, stannylenes have a singlet...

external viewer. Stable thiazol-2-ylidene (vitamin B1 analog). external viewer. Air-stable carbene. external viewer Stable small perdeuterocarbene used...

Another synthesis method involves carbene transfer from carbene sources like Wittig's reagent. Tungsten carbene complexes are active alkene metathesis...

Bismuthinidenes are a class of organobismuth compounds, analogous to carbenes. These compounds have the general form R-Bi, with two lone pairs of electrons...

newly created bismuthenium and stibenium ions, the first reported carbene analogs that were not in Group 14. Additionally, meta-terphenyl ligands were...

question is a better σ donor and π acceptor than its germylene and carbene analogs. Atoms in Molecules bond energy at critical point calculations show...

3-dipolar cycloaddition is a (3 + 2)-cycloaddition and cyclopropanation of a carbene with an alkene a (2 + 1)-cycloaddition. A more recent, IUPAC-preferred...

sufficiently describes the reaction, and there are often competing concerted and carbene-mediated pathways; for simplicity, only the textbook, concerted mechanism...

These salts have been used as ionic liquids and precursors to stable carbenes. Salts where a deprotonated imidazole is an anion are also well known;...

energy reactive intermediates. These intermediates include atomic carbon, carbenes, monovalent carbon species and other energetic molecules. Shevlin is also...

In chemistry, a selone (also known as a selenoketone) is the structural analog of a ketone where selenium replaces oxygen. Selenium-77 is one of the isotopes...

compounds in which palladium forms a coordination complex with N-heterocyclic carbenes (NHCs). They have been investigated for applications in homogeneous catalysis...

carbyne complexes have since been prepared, often by dehydrohalogenation of carbene complexes. Alternatively, amino-substituted carbyne ligands sometimes form...

complex molecules, such as cyanopolyynes HCnN for n = 3,5,7,9, and cumulene carbenes H2Cn for n = 3–6. In 2007 the polyatomic anion octatetraynyl radical was...

temperatures. The borabenzene-pyridine adduct behaves like a diene, not an analog of biphenyl, and will undergo Diels-Alder reactions. 6-membered aromatic...